Rack-action radiator cap



Oct. 9, 1928.

1,687,482 H. s. GILLETTE I RACK ACTION RADIATOR CAP Filed Sept. 7, 1926 j/gl.

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PATENT OFFICE.

UNITED STATES HARRY STIMPSON GILLETTE, OF NEW YORK, Y,, ASSIGNOR, TO GILLETTE MOTOR PRODUCTS CORPORATION, OF NEW YORK, N. Y., A CORPORATION OF DELAWARE.

RACK-ACTION RADIATOR oar.

Application filed September This invention relates to' radiator caps for automobiles, the object. of the same being to obviate some of the objections which are present in the prevailing types of devices used for the purpose.

Another object of the invention is to provide improved means whereby the cover will (when a part of the device is turned) be raised or swun u awardlv on its nivot from b3 u .L

a closed, locked position, and when said part is turned back, said cover .is closed down and locked, these operations being accomplished by a single partial turning movement of the said part. 7

Important features of the improved construction may" befound in the employment of a verticallyinovable gear block rack guided in a fixed partof the device and controlling the swinging movements of the cover tl'irongh a segmental gear formed unitary with the cover and" meshing with gear bars on said block.

Means are also provided for locking the cover in its closed position consisting of lugs and movable parts of the device.

Another feature is formed in a yielding lock to hold the parts with the cover in the open position, when filling the radiator and to prevent vibrations when cover is closed.

In order that the invention may be clearly understood and readily carried into effect the same will now be described more fully with reference to the accompanying drawings illustrating a preferred embodiment thereof, in which 2- Q Fig. 1 is a plan view of the improved radiator cap for the automobiles the parts being shown with the cover in the open position and partly broken away to disclose a yielding lock for holding the parts yieldingly locked when open or closed. 7

' Fig. 2 is a vertical cross section taken on the line 22 of Fig. 1.

Fig. 3 is a view similar to Fig. 2 but with the cover in the closed and locked position. Fig. d is a detail side elevation, partly in section of the fixed base ring of the device showing the gear block in operating position. Fig. 5 is a detail sectionalelevation of the turnable lock-sleeve showing the gear block operating cam slot form in the inner wall thereof.

7, 1926. SeriaiNo. 134,060.

It has an exterior annular ledge 12, and a tubular portion 13, provided with flanges 1 1, at'the top, whichis cut away to form opposite recesses 15.

The tubular portion 13, is formed with a guide box 16, having vertically extending back and side walls 17, and 18 respectively. The side walls are slotted at 19, to receive a cross pin'QO, which extends through a segmental gear 21, formed on a cover .22. The pin 20 also passes through slots 2,provided in side plates 2%, of a gear block 25, mounted and operating in the guide box 16. Extend-v ing between the side plates 24:, of the gear block 25, are gear-bars 26, adapted to mesh with the segmental gear 21, of the cover.

The gear blockalso carries a pin 27, which normally projects into a horizontal straight portion'28, of the cam slot 29, formed in the inner wall of a turnable lock-ring 30, operated' by suitable handles 31. When the cover is to be opened the handles are operated to turn the lock-ring which rests on the ledge 12, of the fixed base ring 11. This movement causes the inclined portion 32 of t is slot 29, toengage the pin 27, of the gear block, and

force it upward from the position shown in Fig. 3. This upward movement first raises the cover bOClllYilOlll its seat on the ring 30,

and when the cross pin 20, reaches the top of the slots 19, in the extended side walls of the guide box, the combined upward movement of the gear block will cause the gear bars 26, to act on the segmental gear, and turn the cover to the open position, as in Fig. 2, of the drawing. r

The cover is formed with a downwardly directed flange 33, provided with packing 24;, to form a sealed joint with the tubular portion 13, of the base ring 11. The parts may be held with the cover open by a ball 35, backed by a spring 36, housed in above 37, in one of the handles 31, said ball engaging a socket 38,- formed in the outer wall of the fixed tubular member 13.

To assemble the base'ring with the lock ring it is necessary to register the portions radiator, on which a base ring 11, is screwed.

The lockring and the cover each have lugs a1, and 42 respectively which are arranged to interlock when the cover is closed.

hat I claim as new, is

1. A radiator cap comprising a fixed base member, a member movable thereon, a cover slot-ted walls, gear block having slot-ted side plates and movable in said box, said block having gear bars and a projecting pin, said cover having segmental gear, a pin connecting the cover gear-block and guide box, said movable member having a cam slot'to engage the pin on the gear block and raise the same to open said cover. I

8. In a radiator cap of claim 2, means for locking the parts when the cover is open.

4. In a radiator cap of claim 2, said cover being hinged on a single pin passingthrough a portion of the cover and playing in'said slots in the guide box walls and gear block respectively and said hinge being entirely concealed when said cover is closed.

5. A tubular device of the character described, including a support, a gear rack extendingalong the support, a member pivotal- I 1y mounted about an axis at right angles to the'rack, said member having a gear, and cam means transverse to the support to move the rack to actuate the gear for causing a tilting movement of said member. I

6. A device of the character described, in-

cluding a tubular support, a member movable to close the same, a gear, rack in said support and extending therealong, a segmented gear coacting with said member, and cam means actuated from outside the support for moving said'rack to operate the gear thereby movingsaid member as aforesaid.

T. Adevice of the character described, including a support, a movable gear rack mounted thereon, a pivoted member, guide means coacting with the pivot of said member to permit predetermined movement of the said, rack having stop means to engage said member and limit the movement ot the pivot with respect to the stop means, said rack en sald gear ln-the last mentioned posi tion to pivotally move said member.

8. Adevice as set forth in claim 7, wherein said support of tubular construction, and includes an interior box having the guide means, said rack being movable in said box. 9. A device asset forth in claim 7, wherein said support includes a box having the guide means, said rack beingin saidbox, said member having a pin engaging both the guide and the stop means. 7 i

Signed at New York, in the county of New York, and State of New York, this 7th I day of August, A. D. 1926.

HARRY STIMPSON GILLETTE. 

